Support for electric lights.



No. 827,199. PATENTED JULY 31, 1906.

0.0- WHITE. SUPPORT FOR ELECTRIC LIGHTS.

APPLICATION FILED APR. 14. 1905.

Y .Z'it veratr (Dd 165 95:

rm: NORRIS PET-5R3 c0., WASHINGTON, n. c.

uflo. all whom, itzmay concern. Y

5113s it known that I,Orrs O. WHITE, a citi- '1 en Lofthe United States,residing at Worcesa.'ter, :inl the.countyaof'VVorcester and State of UNITED STATES [PATENT "cl rion.

timescales.

Massachusetts, have invented a new and usefulSupport for.Electric Lights, of which the following is a specification.

This invention relatesto that class of adjustable supports which are used for incandescent electric lamps or for similar purposes.

The especial object of this invention is to provide a base for a support which is of strong, simple, and inexpensive construction and which will be weighted so that it cannot be readily upset.

' To thisend this invention consists of a base for a sup ort and of the combinations of parts therewit ,as hereinafter described, and more particularly pointedout in the claims at. the end of this specification.

- In the accompanying drawings, Figure 1 is a side view of an adjustable sup ort having a base constructed according to tffis invention. Fig. 2 is a vertical sectional view of a base constructed according to this invention. Fig. 3 is a fragmentary view of the'bottom disk, and Fig. 4 is a fragmentary view of the main sheet-metal shell.

In the use of that class of table-lights or electric-lamp supports to which this inven- I tion particularly relates it is desirable that the base should be heavy enough so that it will not be readily upset.

In this class of articles it has heretofore been the practice to weight the base of the fixture with metal castings or solid pieces of metal.

The especial object of my present invention is to provide for weighting the base of a sup- -tr'al recess 13.

shell 10 and the bottom disk 1 1 is a filling conport or other fixture by means of a filling of eavy lastic material. In practicea filling which fhave found well adapted to the purpose comprises small iron scraps or punchings which are held in place in. a matrix of Port land cement.

Referring to the accompanying drawings and in detail, a construction embodying this invention-as herein illustrated comprises a main sheet-metal shell 10 having bent-in tongues or fingersll. The sheet-metal shell 10 fits onto a bottom disk 12, having a cen- Molded in place between the sisting of fine-iron punchings or scraps embodied in a cement matrix. The iron scraps can be purchased comparatively cheaply and .EatentedJulj 31, 1906.

are preferably sifted :or graded', so that the small individual piecessor metal are more or less uniform in size. When thisfilling of plastic material .is molded in placeibetween the shell 1O andthebottom 'disk 1.2, i;t willbefastened and secured, byithe bentain tongues 11.

In the construction shown space-.iswprovided in the matrix during the. process -=of fill ing, through which is afterwardpassedithe pin 15. This pin 15 preferably threads into the bottom disk 12 and is then looked securely in place by the check-nut 14. This pin in the construction shownserves as .a bolt to bind firmly together the several-parts of the base and also as a means of attachment for the object to be supported. The pin 15 is provided with a washer 16 at its upper end for holding, an additional sheet-metal shell 17. At its top the center pin 15 is preferably provided with an enlargement 18 for receiving the bottom clampof the fixture, and in practice the center pin is provided with a transverse hole or socket 19 for receiving a wire or niail to aid in screwing the pin into and out of ace. p The adjustable support, as herein illustrated and described, comprises the clamp- -pieces C, which are fastenedin place by handwheel N,'which also fastens a rod or pipe section P. The rod or pi e section P'is connected at its upper end y a knuckle-joint to a lamp-socket j The movable parts of the adjustable supportwhich I have herein shown and described are the same as those which are shown and claimed in United States Letters Patent No.

779,453, granted to me January 10, 1905,

. and need not be herein described at length.

I am aware that chan es may be made in the constructing of my: aseiece by those who are skilled in the art wit out departing from the scope of my invention as expressed in the claims and that my base-piece may be used in connection with wide varieties of fixtures. I do not wish, therefore, to be limited to the construction herein shown and described; but

a supporting-fixture comprising a bottom disk, a sheet-metal shell fitted thereon, and a filling of metal ieces in a matrix of Portland cement, said fil ing being held in place by inwardly-bent tongues embedded in said filling.

8. As an article of manufacture, an adjustable support comprising a bottom disk, a

sheet-metal shell fitted thereon, a filling of metal pieces in a cement matrix, a center pin, a second sheet-metal shell fastened by the center pin and clamping-fixtures mounted on the center pin.

4. As an article of manufacture, a base for a supporting-fixture comprising a sheet-metal shell aving integral inwardly and angularly bent tongues, a plate at the bottom of said shell, and a filling in the lower part of said i shell above said plate of plastic material containing heavy pieces distributed through OTIS 0. WHITE Witnesses:

PHILIP W. SOUTHGA'IE, E. M. ALLEN. 

